Carriage-shifting mechanism for type-writers or like machines.



L. MYERS. CARRIAGE SHIFTING MECHANISM FOR TYPE WRITERS OR LIKE MACHINES.

APPLICATION FILED APILZ. 1904.

N0 MODEL.

WWWHHHHHHHHHHHHHHH'U IHH|1uu--- INVENTOR ATTORN EYS UNITED STATESPatented August 2, 1904.

PATENT OFFICE.

LOUIS MYERS, OF NEIVARIC, NEW JERSEY, ASSIGNOE TO UNDERIVOOD'ITYPEWRITER COMPANY, OF NE\V YORK, N. Y., A CORPORATION OF N EIVJERSEY.

CARRIAGE-SHIFTING MECHANISM FOR TYPE-WRITERS 0R LIKE MACHINES.

SPECIFICATION forming part of Letters Patent No. 766,371, dated August2, 1904.

Application filed April 2, 1904:. Serial No. 201,251. No model.)

Be it known that I, Louis MYEus. a citizen of the United States, and aresident of Newark, county of Essex, State of New Jersey, have inventedcertain new and useful Improvements in Carriage-Shifting VMechanisms forIIype-IVriters or Like Machines, of which the following is aspecification.

My invention relates to type-writers and other machines in which thereis employed a carriage capable of being shifted to different positions,as for the printing of upper. and lower case characters.

The object of my invention is to provide a simple and efljcientmechanism for readily shifting the carriage.

Other objects of my invention will appear from the annexed descriptionand the features of novelty pointed out in the appended claims.

In the accompanying drawings, which illustrate a typical form of myinvention, Figure I is a cross-section of a portion of a typewriterembodying my invention. Fig. .2 is a sectional view of the same on line2 2 of Fig. I, and Fig. 3 is a section on the line 3 3 of Fig. 1.

A indicates the frame of the machine, which may be provided with arecess into which is adapted to fit a support B. The said support B maybe secured in the recess of the frame in any convenient manner. Upon therear of the support B is secured a rail or track O, provided with aVgroove O.

I) is a mating rail or track upon the rear of the carriage E and is alsoprovided with a V- groove I). Balls F are arranged to travel in thegrooves U and I). The carriage may be of any suitable construction. Ihave therefore deemed it unnecessary to illustrate the details of thesame. The track or rail D is spaced from the rail C sufiiciently toenable the balls Fto act as a fulcrum when the front of the carriage israised or lowered. At the front portion of the support B is secured abar (i, extending entirely across the machine and having an uprightportion G.

H is a movable track, provided at intervals with pins H, which extenddownwardly from said track through openings in the bar Gr. To the bottomof the bar (i are secured flat springs 5 (i one for each pin H, saidsprings serving to exert an upward pressure on the pins and the track H.The pins H further act as guides for the said track H. Springs of adifferent character may be employed.

J is a track or rail secured to the carriage E, and I represents ballstraveling on the track H and also engaging the track J of the car riageand the upright portion Ur of the bar G.

K is the shift-rail and is provided with a V- groove K, arrangedopposite to a V-groove J in the bottom portion of the bar J. In thesetwo grooves J and K are adapted to travel balls L. One of the surfacesengaged by the balls L might be fiat instead of V- 5 shaped. To the rearof the shift'rail K is socured one arm of a lever M, fulcrumed at M uponthe support B and having a downwardlyprojecting arm N.

O is the usual shift-key lever, fulcrumed at 7 0 upon the frame of themachine and having the usual shift-key P. Thus as the operator pressesthe shift-key P it will cause the lever O to rock the arm N on its pivotM and through the medium of the lever M, connected to the shift-rail K,will raise the said shiftrail and with it the track J, the balls Facting as a fulcrum during this operation. As the track J is raised thesprings (i will press the pins H, the track H, and the balls I up- 30ward. Thus the balls I will always follow the track J and do away withany tendency to bind which might exist otherwise. Furthermore, therelation of the balls I and the balls L to the rail J will always besuch as to 5 insure a perfect ball-bearing for the carriage E in eitherof its positions. The track H and balls I form an auxiliarycarriage-support.

Various modifications may be made without departing from the nature ofmy inven- 9 tion.

W hat I claim, and desire to secure by Letters Patent, is

1. In a type-writer or other machine, a frame, a carriage, a ballbearinglocated between the frame and the rear portion of the carriage, anotherball-bearing located between the frame and the carriage in front of thefirst ball-bearing, and a third ball-bearing located between the twofirst-named ball-bearings and means for swinging the carriage about therear ball-bearing as a fulcrum.

2. In a type-writer or other machine, a frame, a carriage, aball-bearing located between the frame and the rear portion of thecarriage, a second ball-bearing located between the frame and thecarriage, and a third ball-bearing located between the two firstnamedball-bearings, means for swinging the carriage about the rearball-bearing as a fulcrum, and a device for causing the secondballbearing to follow the carriage as the said carriage is raised.

3. In a type-writer or other machine, a frame, a carriage, aball-bearing located between the frame and the rear portion of thecarriage, a second ball-bearing located between the frame and thecarriage in front of the first ball-bearing, a shift-rail for shiftingthe carriage, a ball-bearing located between the said shift-rail and thecarriage and means connected with said shift-rail for swinging thecarriage about the rear ball-bearing as a fulcrum.

4:. In a type-writer or other machine a frame, a carriage, ball-bearingslocated between the frame and the carriage, a shift-rail, a ball-bearinglocated between the shift-rail and the carriage, means connected withsaid shift-rail for causing the carriage to swing about certain of theballs as a fulcrum, and a device for causing certain of the balls tofollow the carriage as said carriage is swun 5. In a type-writer orother machine, a frame, a carriage capable of being shifted todifi'erent positions by a movement transverse to its feed movement,rolling bodies engaging said carriage, a track carried by the framemovably and engaging said bodies, means for causing said track to followthe carriage in its transverse movement, and means, independent of saidtrack, for shifting the carriage from one position to another.

6. In a type-Writer or other machine, a

frame, a carriage capable of being shifted to diflerent positions by amovement transverse to its feed movement, two sets of rolling bodiesengaging said carriage, two independent tracks carried by the framemovably and each engaging one set of said rolling bodies, mechanism formoving one of said tracks to shift the carriage, and means for causingthe other track to follow the shifting movement of the carriage.

7. In a type-writer or other machine, a frame, a carriage capable ofbeing shifted by a movement transverse to its feed movement, means forshifting the carriage, an auxiliary carriage-support, independent'of thecarriageshifting means, movably carried by the frame, and springs forcausing said auxiliary support to follow the shifting movement of thecarriage.

8. In a type-writer or other machine, a frame, a carriage, bearing-ballsinterposed between the frame and the carriage, a shifting devicearranged to swing the carriage about'said balls as a fulcrum, anauxiliary carriage-support, independent of the carriageshifting means,movably carried by the frame, and means for causing said auxiliarysupport to follow the shifting movement of the carriage. Y

9. In a type-writer or other machine, a frame, a carriage, bearing-ballsinterposed between the frame and the carriage, a shifting devicearranged to swing the carriage about said balls as a fulcrum, anauxiliary carriage-support, independent of the carriageshifting means,movabl y carried by the frame, and means for causing said auxiliarysupport to follow the shifting movement of the carriage,the saidshifting device being arranged to engage the carriage between thebearing-balls and said auxiliary support.

In testimony whereof I have hereunto set my name in the presence of twosubscribing Witnesses.

LOUIS MYERS.

Witnesses:

JOHN LOTKA, EUGENE EBLE.

